If the Test Value for a Wilcoxon Signed-Rank Test W_s

Multiple Choice

If the test value for a Wilcoxon signed-rank test w_s is 15, the sample size is 12, and the one-tailed test is to be carried out at the α = 0.05 level of significance, should the null hypothesis be rejected? Use the table of critical values for the signed-rank test below.
N
One-tailed,
Α = 0.05
Α = 0.025
Α = 0.01
Two-tailed,
Α = 0.10
Α = 0.050
Α = 0
02
10
11
8
5
11
14
11
7
12
17
14
10
13
21
17
13
14
26
21
16
15
30
25
20

A) Reject null hypothesis because the test value 15 is less than the critical value 17.
B) Reject null hypothesis because the test value 15 is greater than the critical value 14
C) Do not reject null hypothesis because the test value 15 is less than the critical value 17
D) Do not reject null hypothesis because the test value 15 is greater than the critical value 14